Double Star Calculator - Orbit

Orbital Elements for RST1883

WDS:	RST1883	WDS ID/Discoverer
P:	104.000	Orbital period (years)
a:	0.219	Semi-major axis (arcseconds)
i:	118.1	Inclination (degrees)
Ω:	288.5	Longitude of ascending node (degrees)
T:	2006.800	Epoch of periastron passage (year)
e:	0.779	Eccentricity
ω:	166.0	Longitude of periastron (degrees)
Start-Year:	1973.0	Year
End-Year:	2077.0	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST1883
Position:	161358.13-281509.4	Epoch-2000 right ascension and declination
WDS-ID:	16140-2815	WDS designation
Discoverer Code:	RST1883	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	145793	HD catalog number
Hipparcos number:	79552	Hipparcos catalog number
V1:	8.15	Magnitude of the primary
V2:	10.22	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2019	Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Tok2019h	Reference

Double Star Orbit for RST1883

WDS 6th Orbit including measures of RST1883

-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --

Legend:

Green plus signs:	Visual (micrometric) measures
Violet asterisks:	Photographic measures
Blue symbols:	Various interferometric techniques
Dot-dash line:	Indicates the line of nodes

Ephemeris of RST1883

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.225   311.25
--------------------------
1973.00    0.356   288.85
1974.00    0.352   288.46
1975.00    0.348   288.06
1976.00    0.344   287.65
1977.00    0.339   287.23
1978.00    0.334   286.80
1979.00    0.328   286.35
1980.00    0.323   285.89
1981.00    0.317   285.41
1982.00    0.310   284.91
1983.00    0.303   284.39
1984.00    0.296   283.85
1985.00    0.289   283.27
1986.00    0.281   282.67
1987.00    0.272   282.03
1988.00    0.264   281.35
1989.00    0.254   280.61
1990.00    0.244   279.83
1991.00    0.234   278.97
1992.00    0.223   278.03
1993.00    0.212   276.99
1994.00    0.200   275.84
1995.00    0.187   274.52
1996.00    0.173   273.01
1997.00    0.159   271.23
1998.00    0.144   269.10
1999.00    0.128   266.44
2000.00    0.111   263.00
2001.00    0.093   258.29
2002.00    0.075   251.27
2003.00    0.056   239.56
2004.00    0.040   217.10
2005.00    0.032   176.10
2006.00    0.040   135.91
2007.00    0.049   110.93
2008.00    0.049    90.94
2009.00    0.046    69.20
2010.00    0.045    44.74
2011.00    0.049    21.77
2012.00    0.058     4.12
2013.00    0.069   351.69
2014.00    0.081   342.94
2015.00    0.094   336.56
2016.00    0.107   331.72
2017.00    0.120   327.93
2018.00    0.133   324.86
2019.00    0.145   322.32
2020.00    0.157   320.16
2021.00    0.168   318.30
2022.00    0.179   316.68
2023.00    0.190   315.25
2024.00    0.201   313.96
2025.00    0.211   312.80
2026.00    0.220   311.74
2027.00    0.229   310.77
2028.00    0.238   309.88
2029.00    0.247   309.04
2030.00    0.255   308.27
2031.00    0.263   307.54
2032.00    0.271   306.85
2033.00    0.279   306.20
2034.00    0.286   305.59
2035.00    0.293   305.00
2036.00    0.299   304.44
2037.00    0.305   303.90
2038.00    0.311   303.39
2039.00    0.317   302.89
2040.00    0.323   302.41
2041.00    0.328   301.95
2042.00    0.333   301.50
2043.00    0.338   301.07
2044.00    0.342   300.64
2045.00    0.346   300.23
2046.00    0.350   299.82
2047.00    0.354   299.43
2048.00    0.358   299.04
2049.00    0.361   298.66
2050.00    0.364   298.29
2051.00    0.367   297.92
2052.00    0.369   297.56
2053.00    0.372   297.20
2054.00    0.374   296.85
2055.00    0.376   296.50
2056.00    0.377   296.15
2057.00    0.379   295.81
2058.00    0.380   295.47
2059.00    0.381   295.13
2060.00    0.382   294.79
2061.00    0.382   294.46
2062.00    0.382   294.12
2063.00    0.382   293.78
2064.00    0.382   293.45
2065.00    0.382   293.11
2066.00    0.381   292.78
2067.00    0.380   292.44
2068.00    0.379   292.10
2069.00    0.377   291.75
2070.00    0.375   291.41
2071.00    0.373   291.06
2072.00    0.371   290.70
2073.00    0.369   290.34
2074.00    0.366   289.98
2075.00    0.363   289.61
2076.00    0.360   289.24

Disclaimer

This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 4.0.

Acknowledgements

The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory.

Report Information

Double Star Calculator:		Version 1.2 ($Rev: 2397 $)
Report created:		2026-06-25 17:24:15